The cell is the smallest unit of an organism. Recall that the cell is composed is a self sustaining unit. This implies that the cell has many components that is able to provide for the needs of the cell. The cell is thus depicted as quite a self sufficient unit in itself.
Having said this, the object that is around my school that could be used to model a cell is the motor vehicle. The motor vehicle looks more like the plant cell because of the presence of the body and the windscreen that provides support for the car and protects it from external pressure. The energy for the car to function is provided by the engine of the car were combustion occurs. This is similar to what happens in the mitochondria of the plant cell.
This model can be used to show the various parts of the cell and it also shows the cell as a compete unit. However it falls short in the sense that a car is a nonliving thing and is incapable of cooperating with other units.
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Dietary supplements and decongestants containing ephedrine have recently become more strongly regulated in the united states. Ephedrine is an extract of a plant belonging to which phylum?.
Ephedrine is an extract of a plant belonging to the phylum Gnetophyta.
In the field of pharmacy, ephedrine can be described as a kind of agonist drug that has majorly been used for hypotension and also been used as a dietary supplement. Ephedrine has also been used to treat allergic reactions.
Ephedrine performs its effect on the body of an individual by acting as a stimulant for the central nervous system (CNS).
Ephedrine belongs to the phylum Gnetophyta which are characterized as small, vascular plants.
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why do cells need energy to divide?
What does the ecosystem send te outside world?
Healthy ecosystems protect our soil, clean our air, regulate the temperature, recycle nutrients, and provide us with food. They provide resources and raw materials for the manufacture of pharmaceuticals and other products.
How do ecosystems benefit us?Ecosystem services sustain human existence by supplying nutritious food and clean water, controlling disease and climate, assisting in crop pollination and soil formation, and giving recreational, cultural, and spiritual benefits.
We rely on healthy ecosystems to accomplish a variety of tasks, like purifying the air so we can breathe correctly, sequestering carbon for climate management, cycling nutrients so we can obtain clean drinking water without costly infrastructure, and pollinating crops so we don't go hungry.
These services, also referred to as ecosystem services, include supplying resources such as food and water, preserving ecosystems that sustain biodiversity, giving chances for recreation, and assisting in the regulation of human-caused consequences such as climate change.
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In what phase of meiosis are tetrads of homologous pairs lined up along the center of the cell and attached to the spindle fibers?
Anaphase I
Metaphase II
Metaphase I
Anaphase II
Answer:
Metaphase I
Explanation:
Hope this helps.
Article of plastic in the ocean.
Why or how does the article occur ?
Also provide a brief personal reflection on the article that you have given me
Earth's last sink for plastic waste, the oceans, receive the majority of it from the land. Major rivers operate as conveyor belts, gathering up debris as they flow downstream and carrying it to the ocean. Many pieces of plastic waste that are floating at sea stay in coastal waters.
Why is plastic in the ocean happening?Plastic garbage is transported through drains, streams, and rivers by wind and rain. Ocean access is via drains! Another significant factor is careless and incorrect garbage disposal; unlawful rubbish dumping significantly contributes to the plastic pollution of our oceans.Being such a persistent contaminant, plastic waste is particularly harmful. Decomposition of plastic products might take hundreds of years. Both people and animals are at risk from this garbage. In the debris, fish become entangled and hurt, and some animals mistakenly eat things like plastic bags thinking they're food.To learn more about : Plastic pollution
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what number represents the subscriot 5h2
What is the structure labeled A in the cells above?
Answer:
Mitochondria
Explanation:
Using food pyramids, explain why a vegetarian diet is more "ecologically responsible."
In comparison to a meat-based diet, a vegetarian diet uses less land and water and emits less greenhouse gases. As a result, it is frequently regarded as a greener choice.
What can you eat on vegetarian diet?Choose a range of healthful tree foods, such as whole vegetables and fruits legumes and nuts, and whole grains, to make the most of a vegetarian diet. Reduce consumption of unhealthier options including refined grains, fruit juices, and beverages with added sugar.
What is a true vegetarian diet?A vegetarian does not consume any meat at all, not even fish or fowl. The diet of a lacto-ovo vegetarian includes both dairy and eggs. A lacto vegetarian consumes dairy but avoids eggs. Ovo vegetarians consume eggs but not dairy.
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Select all the algebraic expressions equivalent to a3b3
In fermentation, what do cells use instead of oxygen
to break down glucose?
a. Carbon dioxide
b. Water
c. Lactic acid
d. Nitrogen
Answer:
Answer:sugarExplanation:In the absence of oxygen, the cell uses a process called anaerobic fermentation.
hii please help i will give brainliest to whoever is correct! :)
Answer:
Answer down below!
Explanation:
Answers ranging from top to bottom:
GlucoseCarbon DioxideWaterOxygenwhat is the polypeptide component of lipoprotein called? what is the polypeptide component of lipoprotein called? prolipoprotein apolipoprotein prelipoprotein exolipoprotein
polypeptide component of lipoprotein is called Apolipoprotein
Apolipoprotein Apolipoprotein (Apo), a protein found in plasma lipoprotein, has the ability to bind and transport blood lipids to various human organs for utilisation and metabolism. The liver and small intestine both contribute to its primary site of synthesis. A collection of plasma proteins known as apolipoprotein is linked to a number of illnesses, including hyperlipidemia, atherosclerosis, Alzheimer's disease, and diabetes. Accurate identification and classification of apolipoproteins are important in order to study the function of apolipoproteins and create efficient targets for diseases associated with them. Biochemical investigations can accurately identify apolipoproteins, but they are expensive and time-consuming.To learn more about Apolipoprotein refer;
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Industrial agriculture is most
common in
A. developed countries
B. Ethopia
C. South Africa
D. Nigeria
Answer:A
Explanation:because they are developed so they have the financing for it
Which answer best describes the data in Graph B and E?
Considering the given graphs of the interactions of the population of organisms:
The answer that best describes the data in Graph E is Population 1 was stable until Population 2 began to increase, causing Population; option BWhat might be the cause of the population data in Graph E is an introduced species caused the decline of the native species; option C.The answer that best describes the data in Graph B is: As Population 2 increases, Population 1 increases. Population 1 depends on Population 2; option C.The type of ecological relationship that Graph B likely represents is: Commensalism between two organisms: option D.What is a population of organisms?A population of organisms refers to all the organisms of a given species that are found living in a particular area.
The population of organisms living in a particular area interacts with one another as well as with other organisms and their environment.
The interactions found between populations of organisms include:
Competition - in competition, organisms compete with one another for food, water, water, space, and mates.Commensalism - in commensalism, one organism benefits from the other while the other organism is neither harmed nor benefitted.Predation - in this interaction, one organism kills the other for food.Mutualism - in this interaction, both organisms benefit.In conclusion, interactions exist between populations of organisms in a given area or habitat.
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True or false? data showing that the bacteria were the first lineage to diverge from the common ancestor of all living organisms suggest that the archaea and eukarya are more closely related to each other than they are to the bacteria.
True, the archaea and eukarya are more closely related to each other than they are to the bacteria
The archaea, eukarya and bacteria are described by the Woese's tree of life.
What is Woese's tree of life?
This is a unique research program developed by Carl Woese, it is based on rRNA, for discerning bacterial relationships and constructing a universal tree of life. Woese's interest in the evolution of the genetic code led to him to investigate the deep roots of evolution, develop the concept of the progenote, and conceive of the Archaea.
The tree indicates that the common ancestor for eukarya and archaea is more recent than the common ancestor for all three domains.
Eukarya are therefore more closely related to the archaea than is to the bacteria.
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what impacts on the lion food web would occur if the prey hunted was no longer available
Answer:
If an organism is removed from the food chain, it spoils the flow of energy and nutrient in the ecosystem. It disrupts the balance of the food chain. As a result, the organisms which depend on others for food will die due to starvation.
Explanation: Hope this helps ya'..! :)
Why do scientists think gases such as CO2 trap heat in the atmosphere?
Greenhouse gases are more complex than other gas molecules in the atmosphere, with a structure that can trap heat. Greenhouse gas molecules in the atmosphere absorb light, preventing some of it from escaping the Earth.
Carbon dioxide is Earth's most important greenhouse gas that works for absorbing and radiating heat. Greenhouse gases absorb heat radiating from the Earth's surface and even circulate it in all directions including back toward Earth's surface.
Carbon dioxide in the atmosphere warms the planet, causing climate change. Human activities have raised the atmosphere's carbon dioxide content by 50% in less than 200 years.
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Who believed intelligence consisted of one general factor, called "g," underlying all mental abilities?
O Robert Sternberg
O L.L. Thurstone
O Charles Spearman
O Howard Gardner
The organelle is common to many types of cells and is the primary site for storage of materials such as water, proteins, lipids, and cellular waste. The size of the organelle can vary between plants and animals depending on its general function. True or false?.
Answer:
I believe its True
The organelle is common to many types of cells and is the primary site for storage of materials such as water, proteins, lipids, and cellular waste. The size of the organelle can vary, and it is a vacuole. This is the true explanation.
What are the different functions of the cell organelles?The cell organelles are different in different organisms, such as plants, animals, yeast, etc., because the cell organelles and their functions vary too. The plant cell has a large vacuole, which contains water, proteins, lipids, cellular waste, etc., it has mitochondria, a nucleus, etc., and the function of the vacuole is different from that of the animal cell vacuole. The vacuole of the plant cell is larger than that of the animal cell because the plant cell vacuole maintains the water pressure, but the animal cell does not do this.
Hence, the size of the organelle can vary between plants and animals depending on its general function, and it is a vacuole. This is the true explanation.
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Some individuals are unable to digest the lactose found in the milk of cows. The digestive systems of these individuals most likely lack which of the following?
A.
a lipid that coats lactose molecules
B.
an ability to produce lactose internally
C.
an enzyme that catalyzes lactose breakdown
Some people cannot digest the lactose found in milk. This person's digestive system is deficient in any of the following. The ability of the body to produce lactose.
Sugar is found in milk. It is a disaccharide containing glucose and galactose units. When a person with lactose intolerance consumes dairy products, lactose from these components can enter the intestines and cause gas, cramps, bloating, and diarrhea. Some people can eat small amounts of dairy without any problems. Others have stomach problems and want to avoid all dairy products. Signs of lactose intolerance include nausea, cramps, gas, bloating, or diarrhea within 30 minutes to 2 hours after drinking milk or dairy products. Symptoms occur because the scaffold does not produce enough lactase to digest the ingested lactose.
Lactose is one of the main components of human and animal milk. As a disaccharide containing glucose and galactose, lactose has a fortifying effect on milk. Eggs are not mammals and come from birds, including chickens, ducks, or quails that do not currently produce milk. Eggs are rich in protein and contain many essential vitamins and minerals. They no longer contain lactose, so they can be eaten by people with lactose intolerance and who are allergic to eggs.
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“Why is there so much peat in the peat/perfrost system? Minimum of 5 sentences
PLEASE HELP
There is so much peat in the peat /perfrost system as a result of the low oxygen concentration in the environment which leads to incomplete decomposition occurring.
What is a Peat?This substance has a soft and dark brown property and is formed from partially decaying organic matter and dead substances present in a long period of time.This could take a certain period of years and are also rich in carbon content.
Perma frost is referred to an area which is located on land or under the ocean in areas where there is a low concentration of oxygen as result of certain factors and properties.
Since we are aware that peat is formed partially decaying organic matter under low oxygen concentration, then it is therefore the reason why there is so much peat in the peat/perfrost system and is therefore the correct choice.
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More energy can be from fat molecule than from glucose molecule because the fat molecule contains more
Answer: Hope this helps.
Explanation: Triglycerides store about twice as much energy as carbohydrates. Triglycerides are made of glycerol and three fatty acids. Because there are so many carbons in three fatty acids, and each 2-carbon unit can enter the citric acid cycle, one fatty acid molecule can generate much more ATP than one molecule of glucose.
Answer:
because the fat molecule contains more kilocalories per gram
Using food pyramids, explain why a vegetarian diet is more "ecologically responsible."
The responsibility to preserve and protect the environment is known as ecological responsibility. The majority of the time, ecological responsibility is related to businesses making sure that their operations always abide by environmental laws and regulations.
Explain about vegetarian diet is more Ecologically responsible?People can drastically minimize their consumption of land, water, and oil resources as well as the amount of pollution they might otherwise generate by selecting a vegetarian diet rather than one high in animal products.But when the study's 153 vegans, vegetarians, and omnivores were all included in, it became clear that eating meat was, on average, worse for the environment. When we think about food crops, there are other broad issues to keep in mind that could have a greater negative influence on the ecosystem.According to a thorough peer assessment of studies on vegetarianism, a non-meat diet will probably result in a person emitting less carbon dioxide than they would with a meat-based diet—roughly 1,200 pounds less carbon dioxide. That translates to a mere 4.3% reduction in emissions for the average person living in industrialized nations.
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The chaparral biome is best characterized by _______. a. large, contiguous regions of shrubland b. small regions interspersed with other biomes c. large noncontiguous regions interspersed with other biomes d. the animals dwelling in it please select the best answer from the choices provided a b c d
''a. large, contiguous regions of shrubland'' are the characteristics of the chaparral biome.
What are the characteristics of the chaparral biome?
Chaparral is a type of woodland that is characterized by a combination of dry soil, warm weather, and short and hardy shrubs. The chaparral biome is dominated by short types of woody plants instead of grasses that are present in the grassland biome or tall trees which are present in forest biomes. The chaparral is unique and present on the Pacific coast of North America. Chaparral is a temperate biome that is characterized by hot-dry summers, and mild and rainy winters. Nearly all of the rainfall occurs in the winter and spring rainy seasons at the Chaparral.
So we can conclude that the chaparral biome is best characterized by large, contiguous regions of shrubland.
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[Anatomy, Articulations Homework] The special movement of drawing a back a "jutted out" mandible is known as?
The special movement of drawing back a "jutted out" mandible is known as erotrusion.
A jutted out mandible is called protrusion. The opposite of protrusion is retrusion. The movement of a structure in a posterior, or backward, direction, is what is meant by this term. Retrusion in anatomy might manifest as putting your tongue back in your mouth, pulling your lips back, or pulling your jaw back.
Prognathism is sometimes known as a Habsburg jaw or a prolonged chin. Prognathism typically refers to an excessive protrusion of the lower jaw.
Depending on which jaw is impacted, prognathism can result in either an overbite or an underbite. Prognathism could be a symptom of a medical disease that has to be treated.
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Facilitated transport does not require the cell to use energy because moving molecules from areas of
higher concentration to areas of lower concentration is powered by diffusion.
Is this statement True or False?
Answer:
Facilitated transport does not require the cell to use energy because moving molecules from areas of
higher concentration to areas of lower concentration is powered by diffusion.
True
Explanation:
Answer:
True
Explanation:
The Statement is true because, diffusion involves the movement of individual molecules of a substance through a semipermeable barrier/membrane from a region of high concentration to a region of lower concentration without energy as a requirement.
Part C
Why does the thermometer in the black paper show a greater increase in temperature than the others?
Answer:
Because a black surface takes in/absorbs more radiation from the sun!!
Explanation:
Hope this helps, have a great day :))
in the diagram at the right, in which dirextion will these molecules initially diffuse
A. from right to left
B. from left to right
C. they will not move at all
D. they will move in both directions equally
the molecules initially is diffuse from the right to left
Identify two important steroids in the human body and briefly explain theirfunctions
Answer:
Corticosteroids, including most synthetic steroid drugs, with natural product classes the glucocorticoids (which regulate many aspects of metabolism and immune function) and the mineralocorticoids (which help maintain blood volume and control renal excretion of electrolytes)
9. Students studying the hydrologic cycle plan to use several rain gauges to compare
average annual precipitation in several Texas stare parks. Which of these variables
should be the independent variable?
In the experiment, the independent variable is the type of rain gauge.
What is an experiment?We know that an experiment involves the dependent and the independent variable. The dependent variable would change in value as we continue to alter the value of the independent variable.
Now we are told that the students are trying to study the hydrologic cycle plan to use several rain gauges to compare average annual precipitation in several Texas stare parks as required in the question above here.
In this case, the independent variable that we need to study is the type of rain gauge.
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